212001012100 has 36 divisors (see below), whose sum is σ = 460243848064. Its totient is φ = 84763234080.

The previous prime is 212001012079. The next prime is 212001012109. The reversal of 212001012100 is 1210100212.

212001012100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (212001012109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234792 + ... + 692191.

Almost surely, 2^212001012100 is an apocalyptic number.

212001012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212001012100 is an abundant number, since it is smaller than the sum of its proper divisors (248242835964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212001012100 is a wasteful number, since it uses less digits than its factorization.

212001012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929284 (or 929277 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 212001012100 its reverse (1210100212), we get a palindrome (213211112312).

The spelling of 212001012100 in words is "two hundred twelve billion, one million, twelve thousand, one hundred".